1、列出所有可用repo
yum repolist {enabled|disabled|all} enabled:可用的；disabled:不可用的；all：所有的 ，不带参数默认为列出可用的
[root@CentOS6 yum.repos.d]# yum repolist enabled
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
repo id repo name status
c6-cd CentOS-6 - cd 4,802
repolist: 4,802
[root@CentOS6 yum.repos.d]# yum repolist disabled
Loaded plugins: fastestmirror, refresh-packagekit, security
repo id repo name
c6-media CentOS-6 - Media
repolist: 0
[root@CentOS6 yum.repos.d]# yum repolist all
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
repo id repo name status
c6-cd CentOS-6 - cd enabled: 4,802
c6-media CentOS-6 - Media disabled
repolist: 4,802
[root@CentOS6 yum.repos.d]#
2、列出rpm包
yum list {all|installed|available} all:所有的；installed: 已安装的；available:可以安装的;默认为列出所有的
yum list KEYWORD* 支持使用文件名通配，来获取含有关键字的rpm包
[root@CentOS6 yum.repos.d]# yum list http* #列出所有以http开头的rpm包
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
Installed Packages #下面为已经安装的包
httpd-tools.i686 2.2.15-29.el6.centos @anaconda-CentOS-201311271240.i386/6.5
Available Packages #下面为可以安装的包
httpd.i686 2.2.15-29.el6.centos c6-cd
httpd-devel.i686 2.2.15-29.el6.centos c6-cd
httpd-manual.noarch 2.2.15-29.el6.centos c6-cd
3、列出包的描述信息（无论包有没有安装都可以列出）
yum info package_name
[root@CentOS6 yum.repos.d]# yum info httpd #列出http包的描述信息
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
Available Packages
Name : httpd
Arch : i686
Version : 2.2.15
Release : 29.el6.centos
Size : 828 k
Repo : c6-cd
Summary : Apache HTTP Server
URL :
License : ASL 2.0
Description : The Apache HTTP Server is a powerful, efficient, and extensible
: web server.
4、列出所有的包组信息
yum grouplist
[root@CentOS6 yum.repos.d]# yum grouplist
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Group Process
Loading mirror speeds from cached hostfile
c6-cd/group_gz | 212 kB 00:00 ...
Installed Groups: #已安装的包组
Additional Development
Base
...
Installed Language Groups: #已安装的语言包组
Arabic Support [ar]
...
Available Groups: #可安装的包组
Backup Client
...
Available Language Groups: #可安装的语言包组
Afrikaans Support [af]
...
Done